Question / Help OBS keeps losing frames as I have the program open until I restart it

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Thomi

New Member
Hi! I am streaming for quite a few months now, everyone was fine until a couple weeks ago - I got a GTX1080, upgraded from my 970, and streaming now goes to shit.

Basically the stream starts off nice and dandy, 60 FPS in 720P. But as I go on, my frames keep dropping and even the game (R6:S) loses tons and tons of FPS until I play at like 40.

I checked temperatures and loads of CPU and GPU, neither are bottlenecking.

Eventually after an hour, the stream is at about 20 FPS and occationally even my game starts lagging like crazy.

I tried so many things - Even reinstalled my VC Driver with DDU - nothing.
[Here's a VOD](https://clips.twitch.tv/lordthomi/amusedlorisfreakinstinkin) where it for some reason (only happened once) resets and goes back to 60 FPS no problem. I have no clue how that happened. In the full video you can see the degradation over time. Also, as soon as I simply restart OBS, it works fine again. But restarting hourly...?

It also seems to get slower if I only have OBS open and don't even broadcast or record. But I have to do more research on that, I just randomly saw that. It shows 24 FPS in the preview on a black screen with an overlay and a donation ticker. Edit: [I left it on over night and it shows 12 FPS in the preview now.](https://gyazo.com/f6028916266829d7ed8e1cc5e837d1ca)

That's about all the info I have on the issue. I am really annoyed, I am losing viewers and it really keeps me down. Could it be that Alt+Tabbing has something to do with that?
Here's my setup:

Asus Maximus VIII Ranger Motherboard

GeForce GTX1080

16 GB RAM

Intel Core i7 6700

[OBS Settings](https://gyazo.com/4665213b6fc93cea17c25d3f02f9d611)

[Video Settings](https://gyazo.com/0429b8307bacecbf633fd6cbe573c36b)

[Advanced Settings](https://gyazo.com/7d2ba2b1b2a045b03894d325429252e2)

[Task Manager while OBS is at 12 FPS without streaming](https://gyazo.com/e5640fdd9e9f0406cde8b5208fd9e722)

[Log File of the 12 FPS instance](https://gist.github.com/7a4b025abe42f8b82209bd48a255afe9)

Thanks for your help.
 
Fenrir

Fenrir

Forum Admin
Code: 
05:16:18.956: Output 'adv_stream': Number of lagged frames due to rendering lag/stalls: 70359 (20.6%)

This line says everything you need to know. You're overloading your PC.
 
T

Thomi

New Member
Fenrir said:
Code: 
05:16:18.956: Output 'adv_stream': Number of lagged frames due to rendering lag/stalls: 70359 (20.6%)

This line says everything you need to know. You're overloading your PC.
Click to expand...
But how? It's not bottlenecking anything and works fine for the first hour! Anything I can do about it?
 
Fenrir

Fenrir

Forum Admin
The log you posted doesn't have the profiler information (which is written when OBS closes). Can you look for the same log, but upload it again now that (I assume) OBS has been closed and the profiler info was written?
 
Fenrir

Fenrir

Forum Admin
Code: 
gs_context(video->graphics): min=58.838 ms, median=73.223 ms, max=127.679 ms, 99th percentile=127.326 ms

This seems to be the primary point of lag. Are you watching GPU load as well? Since you're using NVENC to encode, if GPU load is at or near 100%, it can cause issues.
 
T

Thomi

New Member
I was watching my GPU load, too - It sometimes went a bit into like the 80s, but not much higher than that. That's why I'm so confused.
 
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